54 research outputs found

    Polymer Light‐Emitting Transistors With Charge‐Carrier Mobilities Exceeding 1 cm2 V−1 s−1

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    The vast majority of conjugated polymer-based light emitting field-effect transistors (LEFETs) are characterized by low charge carrier mobilities typically in the range 10-5 to 10-3 cm2 V-1 s-1 range. Fast carrier transport is a highly desirable characteristic for high frequency LEFET operation and, potentially, for use in electrically-pumped lasers. Unfortunately, high mobility organic semiconductors are often characterised by strong intermolecular π-π interactions that reduce luminescence. Development of new materials and/or device concepts that overcome this hurdle are therefore required. We report single organic semiconductor layer, light-emitting transistors that combine the highest hole mobilities reported to date for any polymer-based LEFET, with encouraging light emission characteristics. We achieve this in a single polymer layer LEFET, which was further enhanced through the use of a small-molecule/conjugated polymer blend system that possesses a film microstructure which supports enhanced charge carrier mobility (3.2 cm2 V-1 s-1) and promising light emission characteristics (1600 cd m-2) as compared to polymer-only based LEFETs. This simple approach represents an attractive strategy to further advance the performance of solution-processed LEFETs

    Remuneration and providing of employee benefits in Danone, a.s.

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    The aim of this thesis is to examine the staff remuneration in an enterprise. The theme is mainly focused on the field of employee benefits. The practical part solves the implementation of a new benefit scheme in a particular organization in a wider framework. It aims to provide an illustration of a significant bond between the tendency of the market and employees remuneration. It also covers the bond between culture of a particular organization and of employee remuneration. The real data reflecting external and internal environment of this organization and captured in a concrete time period are used in this thesis, additionally, the measurements used in business practises are mentioned

    Das Einlösungsrecht

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    Investments in Energy Sector through the Lenses of Valuation

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    The main research goal is to identify specifics of energy utilities generating electricity and heat from a valuation perspective. To fulfill this goal, the electricity and district heating sector, their characteristic, economic aspects and related regulation have been described. Having weighted possible valuation approaches, the author has decided to opt for both the DCF method and the method using market multiples. The former has been extended by Monte Carlo simulation. The financial and strategic analysis, analysis of key value drivers, financial plan and valuation itself has been thoroughly done. There have been 7 values of equity derived according to a method used and assumptions considered. The variability of outcomes indicates the need for a correct consideration of relevant factors while compiling valuation. These factors are as follows: costs of inputs and their impacts on the entity's operation, price of electricity and heat, life cycle, technological parameters and ecological regulation

    Verhältnis des Staates zum Eisenbahnwesen im besonderen (das Eisenbahnsystem)

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    Die Beiden Typen der Allergischen Hautreaktion

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